Frank Lloyd Wright designed his Prairie style masterpiece, the Frederick C. Robie House in 1908 from his Oak Park Studio. This distinctive structure, which was commissioned by a local engineer, is renowned as a forerunner of modernism in architecture. The American prairie landscape is mirrored in this architectural style by low horizontal design, open interior spaces, and deep cantilevered eaves, made possible by long spans of structural steel framing. The long façade is punctuated by over 170 art glass windows which enhance its openness. The home includes twenty-nine unique glass designs. Their color and delicate geometric diamond and chevron shapes are abstractions of the surrounding Midwest foliage and grain shafts.